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Frequently Asked Questions

What size pump would be best?

Abrasive Waterjet Cutting Tools - Frequently Asked Questions
This depends on the kind of work you want to do. If working in very thick metal, get a pump that is capable of putting a lot of horsepower to the nozzle. Although a smaller pump can machine thick metal, a larger pump will be faster, and therefore more practical. If cutting mostly thin metal, or doing water-only cutting, get a smaller pump. Smaller pumps are often cheaper, cost less to run, are easier to maintain, more reliable, and are quieter. Bigger pumps, however, allow faster cutting.
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NLB Waterjet Solutions - Water Jetting Tips
This depends on the kind of work you want to do. If you know how much water you'll be using, and what pressure you need, you can use our handy on-line selector chart (click here) to select the correct pump. If not, please contact us. We have years of experience in helping people select the best pump for their application. Note: When considering horsepower, please be sure to look at hydraulic horsepower... not the horsepower of the engine or motor running the pump.
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What other differences does a different size pump make?

Abrasive Waterjet Cutting Tools - Frequently Asked Questions
The more horsepower that makes it to the nozzle, the faster you can cut. The trade-off with a higher horsepower pump is cost, effeciency, a larger kerf width, and sometimes a slight loss in precision. However, a high horsepower pump can almost always be run at lower pressures to reduce the operating cost and maintenance, and then run at higher pressures for special jobs that would otherwise try your patience.
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What's the best size of boat to use?

Draft rec.boats.cruising FAQ
For coastal cruising, the simple answer is whatever boat strikes your fancy and satisfies your budget. People who strain their budget to buy expensive boats don't tend to use them that much, because they're busy earning money to keep both their boat and other aspects of their lifestyle afloat. I had a graphic example of this when I visited the ritzy Marina del Rey section of our city (where I work) and the far scummier Long Beach marina.
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What size will work best on my vehicles?

Frequently Asked Questions and Customer Comments - The F.O.D...
Our standard sizes are in 18-inch (45cm) increments. They are 18, 36, 54, & 72 inches (45, 90, 137, 182 cm). The 72" size works well on full size trucks. The 54" unit was designed for compact trucks like the Dodge Dakota, Chevy Blazer, Toyota's, and Nissan's. The 36" Power Bar fits most aircraft tugs. We can build them any size up to 24 feet (7.2 m). Measure the vehicles or equipment you need them on, and call or e-mail us for details.
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What is the best size for the young generation?

Garbage Collection - Frequently Asked Questions
The young generation should be sized large enough so that short-lived objects have a chance to die before the next young generation collection. This is a tradeoff since a larger young generation will allow more time for objects to die but may also take longer to collect. Experiment with the size of the young generation to optimize the young generation collection time or the application throughput.
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How do I verify the size of my air conditioner or heat pump?

Trane : Trane Owners : Frequently Asked Questions : All Freq...
The capacity in tons of a Trane outdoor unit can be determined by dividing the 7th and 8th digit of the model number by 12. So if the model number is 4TTX4036A1000A, take 36 and divide by 12, equalling 3 tons. This is only for Trane models. Other companies use a different method based on their model number nomenclature. While a heat pump is perfectly capable of effectively heating your home, the temperature of the air coming out of the registers confuses some people.
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What size heat pump do i need?

Pool Supplies
Determining which size heat pump of ours to purchase is very simple, but there are a few things you should take into consideration. Besides knowing your pools dimensions, other things to keep in mind that may affect your decision are if your pool is heavily shaded or if you live in a very windy environment. The list below will provide the majority of pool owners an accurate guide to choosing the correct size heat pump.
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What size of heat pump is required?

ABOUT EESC
A heat loss - heat load assessment will determine how much heat the building requires. The installed heat pump and supplementary backup unit must meet this load, subject to the conditions in the CSA standard. The quantity of loop must be consistent with the size of the heat pump. On average, a 4 ton unit will be sufficient for a 1,700 ft² home.
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King of Ponds, Pump, Filter, UV Sterilizer, Liner, Netting, ...
There are many variables - but at a minimum, you want to completely circulate the water in your pond every 2 hours. That means that a 1000 gallon pond should have at the absolute minimum a 500 gph pump. If possible, turning your water over once an hour is highly recommended.
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Which breast pump brand is the best?

Frequently Asked Questions | BreastPumps.com
Only the most trusted brands of breast pumps and pumping products are available at BreastPumps.com. Each brand has unique features that make its pumps better for different situations and lifestyles. Your needs will determine which is best for you. Visit our Breast Pump Comparisons section to see which brand has all the right features for you.
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What is the best time to run my pump?

Steve's Pool Services
In a saltwater pool the chlorine is manufactured by the chlorinator as the pump is running, providing a "trickle feed" into your pool. Since chlorine is affected by UV light it can disappear as quickly as it is made if the pump is running during the day. For this reason it is generally recommended that the pump is set to run in the early mornings and late afternoons when the sunlight is not as strong. I usually set the timer to 3-4 hours from 6am and another 3-4 hours from 4pm.
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What kind and size of pot will my Paph grow best in?

PAPHIOPEDILUM: Frequently Asked Questions (FAQ)
To a certain extent, determining pot size will take into consideration your growing conditions, potting medium and watering habits, but as a general rule you do not want to over pot Paphs, as this leads frequently to root loss over time. Rather pot them so that the roots just comfortably fit into the pot, like a hat on your head: snug enough to stay on but not uncomfortably tight. The other consideration in a pot for Paphs is that it have sufficient drainage.
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What size is best for me?

Durattan ? is the world
The size you buy depends on your personal preference. Pick up your favorite stick and measure it from tip to tip along with the diameter. From the measurements you have taken choose your Durattan? sticks accordingly. Please remember that Durattan? is slightly heavier than an average rattan stick. Yet, it is not as heavy as hard wood. If you don't know what size to buy choose our most popular size ~ 1"X28" stick pair!
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FAQ
The "best" size will differ with the individual and usage. A 12' will offer a small, light, easy to carry boat for one adult or two children. A 15'-8" will offer the greatest capacity. A 14'-6" offers the best of both. Make your decision based on your needs, the amount of weight you want to carry. The longer your boat is the greater the capacity.
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Why is it necessary to know the size and length of the tubing that the pump will be connected to?

Gorman-Rupp Industries - Frequently Asked Questions
Long or restrictive tubing causes high pressure drags. This will reduce the pump flow and/or require more power.
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How do you size a Gamajet to work with an existing pump?

Gamajet: Frequently Asked Questions
To answer this question, one must first determine what type of pump they are using. There are two main families of pumps that work with Gamajet Tank Cleaning machines. The first is a centrifugal or impeller style of pump, the second is a positive displacement pump. A centrifugal pump moves the wash water with the veins of a rotating impeller. By its nature, as the back pressure in a system builds the pump begins to "slip", i.e. the flow rate drops as the resistance increases.
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Back to IndexQ: How do I know how to size the pump to my pond?

FAQs
While taking into account the size of the pond, the most important factor to consider is what the pump will do for the pond. Will it power a waterfall? Will it operate a fountainhead or statue? Sometimes a pump is used for recirculation only, with no visible water movement. The way the pump is to be used will determine the size needed. Waterfalls require the most water flow. To be visually effective, 100 gallons of water per hour per inch of waterfall width is needed.
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What size pump is good? Is bigger better?

Inground Pool Construction Houston
Bigger is not always better. Get the right pump for your pool. Determine gallons, pump flow rate and see which size will save you the most in electric cost. A good general number to use is:
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I need to purchase a pump. What size do I need?

Pond Supplies Questions and Answers form Pondbiz
The pump is one of the most important equipment purchases you will make for your water garden. It is the heart of the pond, circulating water to the filter and keeping the ecosystem healthy. Because it runs constantly, it must be both dependable and energy efficient. The pump you choose is based on the size of your pond and the pumping capacity in gallons per hour (gph). The pump should circulate the entire volume of the pond at least every hour.
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Does it matter what size pump I install?

Carson Water Well Specialists - Frequently Asked Questions
Yes. Well yield is important in selecting the right pump for the well. Other considerations are if there will be extra water usage i.e. irrigation systems, filling a swimming pool or specialized fixtures in the house.
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What size heat pump will I need for my home?

Gavin Lowe Air Conditioning - Heat Pump Installers Christchu...
Every home is as individual as its owner. The key to selecting the right heat pump for your home is accurate estimation of the heat that will need to be transferred into your home in winter for heating, and out of your home in summer for cooling. This needs to be carried out by experienced and qualified specialists like Gavin Lowe Air Conditioning.
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How can I tell what size weights are best for me?

Frequently asked questions: Body By Glamour: glamour.com
If you’re a beginner, start with three- to five-pound weights. If you don’t feel fatigued after you finish all your reps, it’s time to increase the weight by two to three pounds. On the flip side, if you find yourself really straining to lift them, or if the weight is preventing you from completing a move with good form, consider dropping down by two to three pounds for a few weeks until you get stronger.
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What is the best size photograph to send?

Layton Printing: Frequently-Asked Questions
A 3" x 5" or 4"x 6" photo works well. It is always best to send a slightly larger photo that we can reduce, rather than a very small photo that we have to enlarge.
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FAQ - Frequently Asked Questions at SkatesPro.com
Most sizes are given in both men and ladies' sizes. Ladies, if you would want a men's size skate, go down one size. Yes, it does. The larger the wheel, the more rolling you get for less effort. This will result in going faster combined with a smoother ride.
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